Dr Allan Chapman

Historian

Dr Allan Chapman is an astronomical historian.

Recent articles by Dr Allan Chapman

Illustration of ancient Greek astronomers. Credit: NSA Digital Archive / Getty Images

What did early astronomers discover about the Universe?

The ruins of the Temple of Apollo, Delphi, Greece. Credit: Joaquin Ossorio-Castillo / Getty Images

How did the stars point the way to Delphi’s Oracle?

Stonehenge at night with the Milky Way arcing overhead.

Was Stonehenge used for astronomy?

An image of the Pyramids of Giza underneath a starry sky

Can astronomy explain why the Egyptians built the pyramids?